Through drilled oil passages

Through crank pulley

Through sprocket

Through vibration damper

Release the excess pressure

Maintain the water temperature

Retain the vacuum pressure

Retain the atmospheric pressure

Force the water circulation

Reduce the water pressure

Increase the water temperature

Flushing out the cooling system

Bearing

Shaft

Pulley

Impeller

Engine gets over cooling

Engine gets over heating

Engine does not start

Engine does not stop